import changes from `dev' branch of rmottola/Arctic-Fox:

- Bug 1261900: [webm] Use block duration if known. r=kinetik (0455c4de93)
- Bug 1261900: [MSE] P2. Prevent assertion if first media segment contains no usable frames. r=gerald (a1cdf83be3)
- Bug 1261900: P3. Re-add MediaDataDemuxer::GetEvictionOffset() API. r=gerald (fc45da3ca8)
- Bug 1261900: [MSE] P4. Only evict no longer used data from resource. r=gerald (d3e3c59f4c)
- Bug 1261900: [MSE/webm] P5. Re-add WebMTrackDemuxer::GetEvictionOffset. r=gerald (ee8fd8e5dc)
- Bug 1261900: [MSE/webm] P6. Don't unnecessarily calculate the next keyframe time. r=kinetik (aa9345d6eb)
- Bug 1261900: [webm] P9. Prevent null deref when webm logs are turned on. r=kinetik (dfe061a463)
- Bug 1261900 - Allow WebMDemuxer to resume demuxing even after encountering EOS. r=jya (65bd6409fd)
- Bug 1274445: [webm] P1. Track separately audio track from video track. r=kinetik (35f04cd778)
- Bug 1274445: P2. Don't unnecessarily reset the decoder context. r=kamidphish (eaa0d94c25)
- Bug 1275807 - Remove remaining use of FlushableTaskQueue. r=cpearce. (d0834f0a03)
- Bug 1272225. Part 3 - remove use of FlushableTaskQueue. r=jya. (ed25bc636f)
- Bug 1274205 - remove use of FlushableTaskQueue. r=bechen. (9f340e7a97)
- Bug 1274214 - remove use of FlushableTaskQueue. r=kaku. (1c90ec8e7f)
- Bug 1266644 - Remove unused codes. r=jesup r=pehrsons (ffb303f3ee)
- Bug 1266647 - Clean NotifyQueuedTrackChange to only notify when command is track create and track end. r=jesup r=pehrsons (2ed23f22f0)

dom/media/encoder/MediaEncoder.cpp

@@ -105,6 +105,17 @@ MediaEncoder::NotifyQueuedTrackChanges(MediaStreamGraph* aGraph,
   }
 }
 
+void
+MediaEncoder::NotifyQueuedAudioData(MediaStreamGraph* aGraph, TrackID aID,
+                                    StreamTime aTrackOffset,
+                                    const AudioSegment& aQueuedMedia,
+                                    MediaStream* aInputStream,
+                                    TrackID aInputTrackID)
+{
+  mAudioEncoder->NotifyQueuedTrackChanges(aGraph, aID, aTrackOffset, 0,
+                                          aQueuedMedia);
+}
+
 void
 MediaEncoder::NotifyEvent(MediaStreamGraph* aGraph,
                           MediaStreamListener::MediaStreamGraphEvent event)